Paper Info
Title
Massively Parallel Quantum Computer Simulations: Towards Realistic Systems
Abstract
We discuss an extension of the Massively Parallel Quantum Computer Simulator by a gate level error model which covers operational errors and decoherence. Applying this error model to the Quantum Fourier Transformation (the kernel of Shor's algorithm) and Grover's quantum search algorithm, one finds that the QFT circuit is more robust to operational inaccuracies than Grover's algorithm on comparable scales. Critical parameters call be derived which give a first estimate of tolerable error thresholds. At present ion traps are regarded as the most promising technology for the realization of quantum computers due to the long coherence time of trapped ions. We discuss Hamiltonian based dynamical ion-trap simulations which have been developed in collaboration with the experimental working group of Prof. Rainer Blatt. In contrast to standard approaches no approximations like the rotating wave approximation or an expansion in the Lamb-Dicke parameter are required which allow for very accurate simulations. This permits to identify critical system parameters which limit the stability of the experiment.
Year
Venue
Keywords
2007
PARALLEL COMPUTING: ARCHITECTURES, ALGORITHMS AND APPLICATIONS
rotating wave approximation,search algorithm,error threshold,quantum computer,quantum fourier transform,ion trap,working group,grover s algorithm
Field
DocType
Volume
Quantum phase estimation algorithm,Computer science,Massively parallel,Parallel computing,Quantum computer,Theoretical computer science,Quantum simulator,Quantum algorithm,Quantum Fourier transform
Conference
15
ISSN
Citations 
PageRank 
0927-5452
0
0.34
References 
Authors
3
4
Name
Order
Citations
PageRank
Marcus Richter100.34
Guido Arnold211.82
Binh Trieu3374.68
Thomas Lippert4195.65